Anodic oxygenation method and operation apparatus thereof

A technology of anodizing and anodizing film, applied in anodizing, chemical instruments and methods, transportation and packaging, etc., can solve problems such as unsatisfactory, weakened oxidizing ability, and increased surface resistance of metal bodies.
CN1163639CInactive Publication Date: 2004-08-25NIPPON TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NIPPON TECH CO LTD
Publication Date
2004-08-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

An anodizing treatment process is performed while the following apparatuses (A) to (D) are simultaneously operated: (A) a vibrationally fluidly stirring apparatus for the treatment bath, in which a vibration vane is vibrated at an amplitude of 0.5 to 3.0 mm and at a vibrational frequency of 200 to 800 times per minute to generate vibrational flow in the treatment bath; (B) an aeration apparatus for the treatment bath, which comprises a ceramic diffusing pipe having a pore-size of 10 to 400 mu m and porosity of 30 to 40 %; (C) an apparatus for applying vibration to the metal body through an electrode bar on which the metal body is hung in an amplitude from 0.5 to 1.0 mm and at a frequency of 100 to 300 times per minute; and (D) an apparatus for swinging an electrode bar for suspending the metal body thereon, which generates a swinging motion of the metal body at a swinging amplitude of 10 to 100 mm and a frequency of 10 to 30 times per minute through the electrode bar.
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Description

technical field

[0001] The invention relates to an anodic oxidation method of vibrating and flowing stirring of a metal body, and an operating device of the method. Background technique

[0002] In the field of metal product manufacturing, such as the manufacture of aluminum, aluminum alloy, magnesium, magnesium alloy, etc., an anodic oxidation film is formed on the surface of the metal body by applying an anodic oxidation method, which requires reducing energy loss and increasing production, especially accelerating anodic oxidation Oxidation process, improving the efficiency of oxide film formation. Moreover, this method also requires accelerating the anodic oxidation process when using a treatment liquid under high temperature or room temperature conditions.

[0003] In fact, the biggest problem with the conventional anodizing method is that it takes a long time to form even a very thin oxide film with a thickness of 10-15 μm. Therefore, in the production line of metal p...

Claims

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